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FEATURES

DESCRIPTION

APPLICATIONS

CDAC

COMP

SAR

O/P

Drive

I/P

Shift

Reg

ConversionandI/O

ControlLogic

IN+

IN-

REFIN

+VA

+VBD

SDO

SDI

SCLK

CONVST

GND

ADS8319

ADS8319

16-BIT, 500-KSPS, SERIAL INTERFACE MICROPOWER, MINIATURE,

SAR ANALOG-TO-DIGITAL CONVERTER

• 500-kHz Sample Rate

The ADS8319 is a 16-bit, 500-KSPS analog-to-digital

converter. It operates with a 2.25-V to 5.5-V external

• 16-Bit Resolution

reference. The device includes a capacitor based,

• Zero Latency at Full Speed

SAR A/D converter with inherent sample and hold.

• Unipolar, Single-Ended Input, Range: 0 V to

The device includes a 50-MHz SPI compatible serial

interface. The interface is designed to support daisy

• SPI Compatible Serial Interface with Daisy

chaining or cascading of multiple devices. Also a

Chain Option

Busy Indicator makes it easy to synchronize with the

• Excellent Performance:

digital host.

–

93.6 dB SNR Typ at 10-kHz I/P

The ADS8319 unipolar single-ended input range

–

–106 dB THD Typ at 10-kHz I/P

–

±1.5 LSB Max INL

Device operation is optimized for very low power

operation, and the power consumption directly scales

–

±1.0 LSB Max DNL

with speed. This feature makes it attractive for lower

• Low Power Dissipation: 18 mW Typ at 500

speed applications.

KSPS

It is available in 10-pin MSOP and SON packages.

• Power Scales Linearly with Speed: 3.6 mW/100

KSPS

• Power Dissipation During Power-Down State:

0.25

µW Typ

• 10-Pin MSOP and SON Packages

• Battery Powered Equipments

• Data Acquisition Systems

• Instrumentation and Process Control

• Medical Electronics

• Optical Networking

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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2008, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.